Locomotive smoke-lifter.



Y reference being i" pmvideil to prevent HARRY A. HOKE, OF ALTOONA,PBNZQISYLVANTB LOCOMOTIVE SMOKE-LETER.

Specication of Letters Patent.

Yatented Mar. 9, 1915.

Application ined January Q, 1914. Serial No. 809,819.

To all whom 'it may concern: i rlie it known that l, HARRY A. HOKE, acitizen of the United States oi America, residing in Altoona, in thecounty of Blair and State of Pennsylvania, have invented certain new anduseful improvements in Locomotive Smoke-Lfters, of which the followingis a true and exact description, had to the accompanying drawings, whichform a part thereof.

My present invention relates to railway locomotives, and has tor ritsobject to provide simple and effective means for lifting the. smolreissuing 4from the smolrestack of a locomotive sutiicientlyY high abovethe locomotive to prevent it from obscuring the engine crew's view alongthe right ot way.

lily invention is devised to overcome a rather serious dilliculti1 whichhas been eX- perienccd with modern locomotives. lu such a locomotive thesmoltestaclr itself, cannot project much above the top of the boilerproper on account ot the size of the latter, and because otthis fact,and the long length ol3 the boiler, the smoke issuing from thesinolrestaclr not carried high enough at times to prevent it envelopingthe locomotive cab. thereby making it difficult or impossible tor theengine crew to .distinguish nais or other objects along the right otway.

The various Jfeatures ot novelty which characterize nii' invention arepointed out with particularity in the claims annexed to and forming apiart ot this speciiication. l? or a better understanding o'tY theinvention, however, aud of' the advantages possessed bv it, referenceshould bc had to the accomiiilinving drawings and descriptive matter, inwhich 'l have illustrated and described one torni in which my inventionmay be cmbodied,

it the, drawings: Figure l is an elevation, partlyl in section, ot' alocomotive equipped with my invention; lig. l is an enlarged plan viewot' a portion oi' the top ot the siuohestacl; ot' the locomotive shownin l? i O. l; and F f3 is a section on the line ol Fig.

ln the drawings, l represents the locomotive` and il the smoke box atthe front end ol the locomotive. (l represents the usual exhaust nozzle,discharging upwz .'dly into ih smoke box, and ll represents the screenthe passage ot cinders into the smolrestaclr E. As shown, a ring blowerD is mounted on top of the exhaust nozzle C, and is supplied with livesteam at times when the engine is at rest or drifting to create thedesired draft, and, under' some conditions, may be'operated when theengine is working to supplement the action of the exhaust, dischargedthrough the noznle C, on the draft.

The smoltestacl E, as shown, is formed with a iianged portion E fittingagainst the boiler shell and a portion E2 extending into the boiler andterminating somewhat above thc exhaust nozzle C. At its upper end thestach E is formed with a hollow' bead. From the annular passage E in'the hollow bead lead upwardly directed passages E4 which are inwardlyinclined toward the axis oit' the sinolestaclr. Live steam is suppliedto the passage ll:i through the pipes .F and ll from the steam dome A2ot' the locoino tive. The tlow of steam through the pipe ll iscontrolled by the valve G located in the locomotive cab A3, and a valvel is ,shown yas located in the locomotive cab to control the passage ofsteam through the pipes :indd to the blower i3.

ln the use ol my invention steam isi/supi plied to the annular passageE3 atthe top of the smokestack whenever this is necessary or desirableto prevent the smoke from obscuring the engine crews vision along theright of way. iVhen steam is thus supplied to the passage E3, the jetsof steam issuing from the upwardly directed and inwardly inclined nozzlepassages Ff* impinge against the gaseous products issuing from thesmokestack in such manner as to carry these products well above thelocomotive. lt is to be observed that these jets olt steam do notinterfere with, but, on the contrary, directly augment the action ot'the other agencies tending to create a drait through the smokestacli;and that the means for produc-- ing these jets are so disposed that theydo not interfere with the iree liowA of the gaseous products through thesmokestaclr.

Having now described my invention, what l claim as new andA desire tosecure by Letters Patent, is:

1. ln a locomotive, the combination-with the locomotiv e smolrestaclr ofmeans for discharging steam at the top of said stack in upwardly andinwardly directed jets disposed around the circumference of the stack110 at the top thereof adapted to' lift the smoke issuing from the stachwell above the upper end of the latter.

end with a chamber surrounding the passageway for smoke, and with nozzlepassages leading upwardly and inwardly therefrom so that steam suppliedto said chamber will issue from said passages in jets impinging againstand lifting the body of gaseous products issuing from the smokestaclwell above the upper end of the latter, and means for supplying steam tosaid chamber from the locomotive boiler lcomprising piping and acontrolling valve located in the locomotive cab.

3. In a locomotive, the combination with the locomotive smokestackprovided at its upper end with a chamber surrounding the I passagewayfor smoke and wili a plurality of small size nozzle passages leadingupwardly and inwardly therefrom, and inclined toward the stack axis sothat steam said chamber will issue from jets impinging against andlifting the body of gaseous products issuing from the smokestack wellabove the upper" end of the f" liter, and means for supplying steam tosaid chamber from the locomot've boiler comprising piping and acontrolling valve located in the locomotive cab.

4f. ln a locomotive, the combination of a locomotive stack provided atits upper rim with an annular steam chamber surrounding theA smokepassage through the stack and having a series of small orifices sodirected that steam jets issuing theref om will focus at a point in theaxis of the stack some distance above the top of the latter so that thebody of gaseous products issuing1 from the smoke-stack will be liftedwell above the upper end of the latter, and a steam pipe connecting saidchamber to the boiler.

In a locmotive, the combination with the locomotive smokestach of meansfor discharging steam at the top of said stack in upwardly directed jetsinwardly inclined somewhat toward the aXis of said stack and uniformlydistributed jets being adapted from the stack the latter.

to lift the smoke issuing well above the upper end of l HARRY A. HOKE.Witnesses:

J. L. WERTZBERGER, .TA T. HANLON.

about the latter, said

